mitt romney is back in the battleground state of virginia today to deliver a speech on foreign policy at the virginia military institute in lexington. >>> two big tech firms in china are getting the cold shoulder from u.s. lawmakers. the house intelligence committee today releases a report warning american companies they should not do business with two chinese firms. the house panel says the firms pose a threat to national security based on recent cyberattacks traced to china. a maryland congressman spoke out last night on 60 minutes. >> we have evidence that china has been taxing us on a regular basis, even now as we speak that china has been taking a lot of our trade secrets, our papt ents from all of our different companies to do better in competition with us. -- our pat he wants from all of our different companies to do better in competition with us. >>> a shocking discovery in the boston harbor. still ahead, what was found floating in the water. >> a private rocket heads to the space station with ice cream on board. details of that mission still ahead. i wonder what flavor. >> i'